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acorneau
Nov 9, 2012, 1:38 PM
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Registered: Feb 6, 2008
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I wonder how long it will be before some knucklehead with more money than sense tries to use one of these as their top-rope belay device...
See the video here: http://www.youtube.com/watch?v=tfsrsgFB1ms
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oldsalt
Nov 9, 2012, 2:44 PM
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Registered: Jan 19, 2004
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I think that I see the concept, but I don't want complexity on the rock. Simple to use normally, simple to use in an emergency, less likely to foul, etc. Give me simplicity!
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patto
Nov 9, 2012, 7:38 PM
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Registered: Nov 15, 2005
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Given that it is made for ropes 11.5mm - 13.5mm I'm not sure that we'll see this on the cliffs any time soon. 
Great device for its intended purpose though!
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majid_sabet
Nov 9, 2012, 9:17 PM
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Registered: Dec 13, 2002
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interesting concept but I would do a drop test to see how it handles ropes
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dan2see
Nov 9, 2012, 9:36 PM
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Registered: Mar 29, 2006
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You can see in the video, it's not a "belay device". It's a "self-belay device". The climber has control of his own travel on the rope.
The video doesn't show the top anchor, but I guess the rope goes through a simple pulley. That also means that the weight load on the top anchor is body-weight only. Half of a regular belayed anchor, and no dynamic falls. Although I don't know how those guys controlled their pendulum so gracefully.
I think it would be great fun! I'd love to set that rig up on any cliff anywhere, and explore the rock-face like I've never been able to do before!
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marc801
Nov 9, 2012, 10:11 PM
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Registered: Aug 1, 2005
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oldsalt wrote: I think that I see the concept, but I don't want complexity on the rock.
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healyje
Nov 9, 2012, 10:36 PM
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Registered: Aug 22, 2004
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acorneau - thanks for posting that up - I thought it was a joke at first. I cross posted it to ST with an attribution to you here.
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trisgo
Nov 10, 2012, 2:37 PM
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Registered: Aug 4, 2005
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I'll stick to a Grigri.
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treenail
Feb 5, 2013, 11:45 PM
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Registered: Jan 20, 2002
Posts: 68
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It's an arborist climbing tool.
The Unicender is a much better tool since it can be used on single rope technique as well as doubled rope technique. For arbos DdRT is NOT two ropes. One rope is used with it being 'doubled' over a limb or tie in point.
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